The STREAM pilot sites were chosen carefully to present the diversity in geographical, economic, size and type of the consumers. All the pilots focus on a specific part of STREAM Ecosystem but complement each other to form a comprehensive testing ground of all the elements of STREAM Ecosystem.
The Slovenian pilot site encompasses an industrial park in the town of Ajdovščina, located in the south-western part of Slovenia. It comprises approximately 340 industrial and commercial buildings connected to the power network managed by the DSO Elektro Primorska (STREAM partner EPR).
The Slovenian pilot site encompasses an industrial park in the town of Ajdovščina, located in the south-western part of Slovenia. It comprises approximately 340 industrial and commercial buildings connected to the power network managed by the DSO Elektro Primorska. Electrical power is supplied via two 20 kV medium voltage feeders and ten 20 kV/0.4 kV transformer substations. Whilst majority of customers are connected to LV distribution network, several larger industrial customers are connected directly to the MV network. As the existing power network within industrial park in Ajdovščina does not require any significant upgrade to facilitate the implementation of the proposed pilot project, the key step for gauging overall potential is evaluating the available flexibility of a sample of companies present in the pilot site, with most of whom the letters of intent for STREAM involvement have already been signed. Based on the information provided, the aggregated peak power of the sample is approximately 9.4 MW and preliminary field analyses, we estimate that roughly 2 MW of this capacity can be used to provide flexibility services to a flexibility service provider, DSO or TSO.
STREAM project kick-off
Start of visits to pilot site companies by KOL and AVA
Definitions of initial version of pilot site services and research questions
KOL successfully engaged seven of the pilot site companies and performed several technical services (feasibility study for deploying BESS and EV charging stations, eligibility study for passive monetization)
AVA successfully motivated two companies for active participation in STREAM by installing four new EV charging stations
EPR data preparation (topology, measurement data from smart meters)
SI pilot initial local flexibility market design outlined
Refinement of the SI pilot local flexibility market design, definition of flexible connection agreements
Connection of several pilot site assets to sFLEX is established
Several workshops performed, feedback used to refine services

Final versions of services, use cases, requirements and KPIs for the SI pilot site
Definition of SI pilot site deployment plan, update to the risk log
Start of development of sPLAN and sDATA tools
Start of development of sMART and sGRID tools
Grid topology of the SI pilot site identified
Forecasting algorithm for sGRID selected and tested on a limited part of the grid
Forecasting algorithm tested on the SI pilot site grid
Local flexibility market finalised
Integration between sDATA and STREAM stakeholders identified
First activations using sFLEX completed
Integration with other tools in SI pilot site
sMART, sGRID and sPLAN development finalised
Gathering inputs for the periodic report related to the SI pilot
Test cases for the SI pilot finalised
Initial datasets for the SI pilot defined
Demonstration plan finalised
Analysis of review meeting recommendations relevant for the SI pilot held
Concrete policy recommendations for SI pilot defined
Scenario identification for sPLAN completed
Finalisation of specific policy recommendations for SI pilot site
sPLAN scenarios validated in a workshop with EPR
Grid topology of the SI pilot site updated, sGRID connected to the market platform sMART
Device Registry test device successful prequalification
Device Registry prequalification of all test devices successful
Final demonstration of sGRID, sMART and sFLEX in the SI pilot site